Amp failure and need some help


New member
Username: Coiwe

Concepcion, Bio Bio Chile

Post Number: 7
Registered: Jul-05
I have a Marantz PM68 integrated amplifier. Some days ago I had to move home. After I reinstalled my audio set, the amp started to sound different to me. Soon I realize that both channels were sounding the same. I moved the balance knob to the right and both channels remain delivering music. I moved the knob to the left and
again both channels continues delivering music. In other words the balance knob was not working. Also, when I pushed the source direct button to the "on" position, the system stop sounding. As in my city there is not a Marantz service, I want to have and idea of what is the more probable component is failing, before send it for repair.

Thank you very much in advance


Gold Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 4813
Registered: May-04

It's hard to tell without looking inside the amp. Many modern (read the last ten years) amplifers use a system control IC. It is a large scale chip which controls many of the functions and operations of the entire amp. This would be my first suspicion.


New member
Username: Coiwe

Concepcion, Bio Bio Chile

Post Number: 8
Registered: Jul-05
Thank you Jan. It is something to start with.

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